Creel structure for spinning and roving frames



May 4, 1948 M. COTCHETT 2,441,110

CREE L STRUCTURE FOR SPINNING AND ROVING FRAMES Filed Feb. 3, 1945 3Sheets-Sheet l May COTCHETT 2,441,110

CREEL STRUCTURE FOR SPINNING ,AND ROVING FRAMES Filed Feb. 5, 1945 5sheets-sheet 2 May 4, 1948.

L. M. COTCHETT CREEL STRUCTURE FOR SPINNING AND ROVING FRAMES- FiledFeb. 3, 1945 3 Sheets-Sheet 3 Patented May 4,, 1948 CREEL STRUCTURE FORSPINNING AND ROVING FRAMES Louis Cotchett, Hingham, Mass., assignor toSaeo-Lowell Shop, Boston, Mass., a corporation of Maine ApplicationFebruary 3, 1945, Serial No. 575,998

7 Claims. (Cl. 242-131) This invention relates to spinning frames andsimilar machines in which essentially the same bobbin arrangements maybe used. The invention is more especially concerned with the creelstructure, and it aims to improve apparatus of this type with a view toproviding an organization which will be exceptionally simple, will bemore convenient for the'operators to use, and will eliminate a highpercentage of the labor involved in cleaning.

The nature of the invention will be readily understood from thefollowing description when read in connection with the accompanyingdrawings, and the novel features will be particularly pointed out in theappended claims.

In the drawings,

Fig. 1 is a plan view of the creel section of a spinning frame embodyingfeatures of this.invention;

Fig. 2 is a side elevation of the structure shown in Fig. 1;

Fig. 3 is a vertical, transverse section through the creel of themachine shown in Figs. 1 and 2; and

Fig. 4-is a sectional view showing a detail of construction of thebobbin-supporting arms.

Referring first to Figs. 1 and 3, the construction there shown comprisesa spinning frame of the duplex type. That is, it includes two rows ofspindles with cooperating rows of drawing rolls 3 and 4, respectively,mounted at opposite sides of the frame, and a creel positioned betweenand above them. The present invention is particularly concerned with thelatter structure,

As best shown in Figs. 1 and 3, it comprises a main central support,roughly of pyramidal form in transverse section, and extendingthroughout the entire length of the creel, although it may be made insections, if desired, for manufacturing and assembling convenience, orfor any other reason. This central structure forms the main sup-port fortwo banks of bobbins located at opposite sides of it. It includes twometal plates, indicated at 5 and 6, respectively, both secured at theirupper edges in the opposite grooved sides of a circular rod 1. For thispurpose they may be spot-welded, screwed, or riveted to the rod andtheir outer surfaces merge smoothly with the upper rounded surface ofthe rod. At their lower edges these plates are connected by foot pieces9 and 10 of the weighting mechanisms for the rolls to the respectiveroller beams H and I2.

It should be observed that the upper portions ofthe two plates 5 and 6are spaced apart by only relatively short distances but that their lowerportions diverge rapidly from each other as they extend toward theopposite edges of the frame. To the narrower portions of the centralstructure formed mainly by these plates several series of laterallyprojecting arms ii are secured. Preferably these arms are streamlined,as best shown in Fig. 4, throughout the greater part of their length,but'each arm also has a pin M at its outer end to support a bobbin. Thearms may be secured to theplates before they are assembled in themachine, either by spot-welding, or by screws, or similar fastenings I5,Fig. 4, driven through the plates from the inner surfaces thereof. Theyare arranged in horizontal rows extending lengthwise of the frame, andthey are so spaced as to support the bobbins of each bank in staggeredrelationship to each other, not only in a vertical plane extendinglengthwise of the machine, as shown in Fig. 2, but also in a transversevertical plane, as illustrated in Fig. 3, and additionally in ahorizontal plane, as shown in Fig. 1. This makes the maximum use of thespace available, while still holding the over-all lateral dimensions ofthe creel within exceptionally narrow limits. At the same time itprovides means for supporting the bobbins in a compact relationshipwhich is far more convenient for the operator than is the customaryarrangement. As shown, the bobbins overlap slightly in a verticaldirection, and this overlap will be increased with bobbins of greateraxial length.

At points spaced suitably along the length of the central supportingstructure 5-6, additional arms I1 and 18, Figs. 2 and 3, are secured tothe respective plates 5 and 6 and extend laterally in'oppositedirections away from said support. At their free ends they are equippedwith fittings l9 and 20,respectively, through'which vertical bars 2| and22 extend and in which they are secured by pins or set screws; and eachof these sets of bars supports three guide rods for the strands drawnfrom the respective banks of bobbins. The rods for the right-hand bank,Fig. 3, are indicated at 23, and those for the left-hand bank at 24.Strands of yarn drawn from the respective bobbins run over them andultimately are guided on the bottom bars to the bites of the rear rollsof the two lines of draw ing rolls 3 and 4. A machine so organized canreadily be made with a maximum height of five feet and four inches fromthe floor to the top rods 23 and 24, so that all of the bobbins arewithin convenient reach of the operator.

Much of the labor of cleaning required in a spinning frame is occasionedby the shedding of lint and fiy from the bobbins and the strands drawnfrom them, as the latter travel to the drafting rolls. This flyordinarily collects on the creel boards between the lines of drawingrolls and on the other numerous horizontal surfaces in the immediateneighborhood of the bobbins. According to the present invention,however, these horizontal surfaces are substantially eliminated. -Thearms I:- are streamlined, as above explained, and the arms l1 and I8preferably are made of a similar form so that they offer a minimum ofsurface on which lint can collect.

Moreover, each of the plates 5 and 8 underlies its respective bank ofbobbins, and it has surfaces sloping downwardly and outwardly whichcooperate with the down-draft of air, normally created by the motionofthe bobbins, to guide this lint to the adjacent edge of the machineframe where it is discharged and ultimately falls on the floor. Thusthese plates act as shields on which the lint collects and from thesurface of which it is swept by the down-draft above mentioned. a

It will be seen from an inspection of Fig. 3 that the bobbins aresupported at their lower ends only, each pin l4 carrying a bushing Mwhich is mounted to rotate freely on it. The bushing, in turn, fits intothe bore in the lower end of the bobbin and has a shoulder to limit thedownward movement of the bobbin. Thus the supporting structure requiredfor the bobbins is reduced to a minimum and is almost entirely devoid ofsurfaces on which lint or fly can collect. This fact will beparticularly noticeable from an inspection of Fig. 1.

The invention provides a creel structure of exceptionally simple form,which is compact and capable of being manufactured economically,

while at the same time being exceptionally convenient for the operatorto use.

While I have herein shown and described a preferred embodiment of myinvention, it will be evident that the invention may be embodied inother forms without departing from the spirit or scope thereof.

Having thus described, my invention, what I desire to claim as new is:

1. In a spinning frame, a creel structure comprising means forsupporting a multiplicity of bobbins in positions for the feeding of theyarns drawn from them to the spinning instrumentalities, and a shieldunderlying said bobbins and having an inclined surface for catching thegreater part of the lint shed by the bobbins and guiding it laterallytoward one side of the frame, said means including arms extendinglaterally from said shield and the arms being provided with pins adaptedto support said bobbins at their lower ends only in approximatelyupright positions.

2. In a spinning frame of the type comprising rows of spinninginstrumentalities located at opposite sides of the machine, a centralcreel structure having surfaces inclined laterally toward the oppositesides of said frame, arms extending laterally from said centralstructure, and rotary bobbin supporting pins mounted on said arms andadapted to support the bobbins in substantially upright positions byengagement with their lower ends only.

3. In a spinning frame of the type comprising rows of spinninginstrumentalities located at opposite sides of the machine, a centralcreel structure having broad surfaces inclined laterally toe ward theopposite sides of said frame, arms extending laterally from said centralstructure, right and left banks of bobbins supported on said arms andarranged in rows at opposite sides of said central structure and abovesaid surfaces.

additional arms extending from said central structure, and devicessupported by the latter arms for guiding the strands drawn from saidbanks of bobbins, the aforesaid arms being substantially devoid of flat,horizontal surfaces, whereby they shed lint or fly coming in contactwith them. i

4. In a spinning frame of the type comprising two rows of spinninginstrumentalities located at opposite sides of the machine and right andleft banks of bobbins positioned in cooperative relationship to saidinstrumentalities, a creel structure for supporting said bobbins andincluding plates having upper portions, steeply inclined and positionedclosely adjacent to each other, said plates also including lowerportions sloping more gradually away from each other toward oppositeedges of the machine frame, the creel structure including meanssupporting said banks of bobbins above said plates in such positionsthat lint and fly shed from them will fall on said plates and be guidedby them outwardly toward the opposite edges of the machine.

5.. In a spinning frame of the type comprising rows of spinninginstrumentalities located at opposite sides of the machine, a centralcreel structure having .broad surfaces inclined laterally toward theopposite sides of said frame, arms extending laterally from saidsurfaces, and right and left banks of bobbins supported on said arms andarranged in rows at opposite sides of said central structure, said broadinclined surfaces gnderlying the entire space occupied by said bobins.

6. A spinning frame according to preceding claim 5, in combination withhorizontal guide bars for the slivers drawn from said banks of bobbins,and additional arms extending from said central structure and supportingsaid bars.

7. In a spinning frame of the type comprising two rows of spinninginstrumentalities located at opposite sides of the frame, right and leftbanks of bobbins and right and left rows of drawing mechanisms throughwhich slivers drawn from said bobbins are fed to said instrumentalities,a creel structure comprising two shields inclined in opposite directionstoward the edges of said frame, said shields underlying said bobbins andthe sections of said slivers running from the bobbins to said drawingmechanisms, whereby said shields collect lint and fly falling from saidbobbins and said slivers and guide it to the opposite sides of saidframe; said shields forming thesupporting body of the creel structureand said body having a transverse, vertical, sectional form oftriangular shape, with the apex of said body located between the twobanks of bobbins and its base portions extending in opposite directionsunder the respective banks of bobbins substantially to the oppositeedges of the machine frame.

LOUIS M. COICHE'IT.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

